19173141

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 31647616

約数和(自身を除く): 12474475

約数列:

[1, 3, 9, 13, 37, 39, 43, 103, 111, 117, 129, 309, 333, 387, 481, 559, 927, 1339, 1443, 1591, 1677, 3811, 4017, 4329, 4429, 4773, 5031, 11433, 12051, 13287, 14319, 20683, 34299, 39861, 49543, 57577, 62049, 148629, 163873, 172731, 186147, 445887, 491619, 518193, 1474857, 2130349, 6391047, 19173141]

約数ペア:

[(1, 19173141), (3, 6391047), (9, 2130349), (13, 1474857), (37, 518193), (39, 491619), (43, 445887), (103, 186147), (111, 172731), (117, 163873), (129, 148629), (309, 62049), (333, 57577), (387, 49543), (481, 39861), (559, 34299), (927, 20683), (1339, 14319), (1443, 13287), (1591, 12051), (1677, 11433), (3811, 5031), (4017, 4773), (4329, 4429)]